18 research outputs found
Challenges for scanning electron microscopy and inspection on the nanometer scale for non-IC application: and how to tackle them using computational techniques
In this paper key challenges posed on metrology by feature dimensions of 20nm and below are discussed. In detail, the need for software-based tools for SEM image acquisition and image analysis in environments where CD-SEMs are not available and/or not flexible enough to cover all inspection tasks is outlined. These environments include research at universities as well as industrial R and D environments focused on non-IC applications. The benefits of combining automated image acquisition and analysis with computational techniques to simulate image generation in a conventional analytical SEM with respect to the overall reliability, precision and speed of inspection will be demonstrated using real-life inspection tasks as demonstrators.ImPhys/Charged Particle Optic
Silicon Nitride Waveguides and Spot Size Converters with < 1.76 dB Loss Over Broad Wavelength Range from 1010 nm to 1110 nm for OCT Applications
CMOS plasmonic waveguides co-integrated with LPCVD-based Si3N4 via a butt-coupled interface
Integrated perovskite lasers on a silicon nitride waveguide platform by cost-effective high throughput fabrication
Integrated perovskite lasers on a silicon nitride waveguide platform by cost-effective high throughput fabrication
Abstract: Metal-halide perovskites are a class of solution processed materials with
remarkable optoelectronic properties such as high photoluminescence quantum yields and
long carrier lifetimes, which makes them promising for a wide range of efficient photonic
devices. In this work, we demonstrate the first successful integration of a perovskite laser
onto a silicon nitride photonic chip. High throughput, low cost optical lithography is used,
followed by indirect structuring of the perovskite waveguide. We embed methylammonium
lead tri-iodide (MAPbI3) in a pre-patterned race-track microresonator and couple the emitted
light to an integrated photonic waveguide. We clearly observe the build-up of spectrally
narrow lasing modes at room temperature upon a pump threshold fluence of 19.6 μJcm−2. Our
results evidence the possibility of on-chip lasers based on metal-halide perovskites with
industry relevance on a commercially available dielectric photonic platform, which is a step
forward towards low-cost integrated photonic devices.Direct link to the publisher:
https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-25-12-13199&id=367240#articleBody
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